this is a tower defence game where you buy from the shop to buy space-like objects. there will be sheep and various different enemies trying to attack your base (the thing on the left). You can tap or use items from the shop to defeat the enemies. After defeating an enemy, you get it in your inventory. Here you can put it in the pen to gain money. How to use the pen? to use the pen, you click on your base. then either type 1, 2 or 3. The number is the slot where you will put your sheep. Then type the sheep you want to put in that slot. PS you can not take sheep out but replace then.
